gymnastic exercise vs chin

gymnastic exercise and chin both are nouns.

Word	Noun	Adjective	Verb	Adverb
gymnastic exercise	Yes	No	No	No
chin	Yes	No	Yes	No

gymnastic exercise (noun)	chin (noun)
(gymnastics) an exercise designed to develop and display strength and agility and balance (usually performed with or on some gymnastic apparatus)	the protruding part of the lower jaw
a sport that involves exercises intended to display strength and balance and agility

gymnastic exercise (verb)	chin (verb)
	raise oneself while hanging from one's hands until one's chin is level with the support bar